1834 - Thomas Davenport of Vermont developed the first real electric motor ('real' meaning powerful enough to do a task) although Joseph Henry and Michael Faraday created early motion devices using electromagnetic fields.
Below is a more detailed usage of operating systems according to age group: 18 to 34 years old. Of all the smartphone users, 50% use Android as operating system, 43% use iPhone, 39% use Microsoft and 38% use RIM. Apparently, more users prefer Android.
selvam_0p3 - Champlain College (VT)  1 Evolution of Operating System : The evolution of various types of operating systems can be briefly described as follows : (1) Batch System : This type of Operating System was used in the earlier age. To speed up processing, jobs with similar needs were batched together and were run through the computer as a group.